Patents by Inventor Ken Izumori

Ken Izumori has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240225064
    Abstract: Object is to mass-produce a sweetener containing D-allulose and having a sweetness degree and taste quality very close to those of sugar at a world scale and at a low cost with price competitiveness.
    Type: Application
    Filed: May 7, 2021
    Publication date: July 11, 2024
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Kazuya Akimitsu, Ken Izumori, Akihide Yoshihara, Seizo Takaoka, Shiro Kato, Susumu Mochizuki
  • Publication number: 20240180937
    Abstract: The present invention provides a cytokine production suppressing composition containing D-allose as an active component. The present invention further provides a method of treating or preventing diseases associated with cytokine overproduction in a subject, said method involving dosing the subject with the cytokine production suppressing composition containing D-allose as an active component.
    Type: Application
    Filed: March 4, 2022
    Publication date: June 6, 2024
    Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, SETOLAS HOLDINGS, INC.
    Inventors: Katsuaki Hoshino, Kenjiro Takao, Ken Izumori
  • Publication number: 20240002828
    Abstract: A highly safe and highly heat-resistant L-rhamnose isomerase usable in the food industry and the production thereof are disclosed. The L-rhamnose isomerase is derived from a microorganism belonging to the genus Enterobacter, has a subunit molecular mass of 47 kDa as measured by SDS-PAGE, and has the following substrate specificities (A) isomerase activity that recognizes and reacts with a CHO group at C1 and an OH group at C2 of an aldose to convert the CHO group at C1 into an OH group and the OH group at C2 into a CO group, or recognizes and reacts with an OH group at C1 and a CO group at C2 of a ketose to convert the OH group at C1 into a CHO group and the CO group at C2 into an OH group; and (B) reactivity with L-rhamnose, L-lyxose, L-mannose, D-allose, D-ribose, and L-talose.
    Type: Application
    Filed: November 30, 2021
    Publication date: January 4, 2024
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Kazuya AKIMITSU, Ken IZUMORI, Akihide YOSHIHARA, Shiro KATO, Susumu MOCHIZUKI, Hiromi YOSHIDA, Shigehiro KAMITORI
  • Patent number: 11653685
    Abstract: A D-psicose-containing sweetener with the modification of the taste of D-psicose includes D-psicose, a sugar alcohol and/or a high intensity sweetener, preferably containing D-psicose as the main component, particularly a low-calorie sweetener and/or a sweetener giving refreshing feel in the oral cavity, as well as foods and drinks obtained by using the D-psicose-containing sweetener with the modification of the taste of D-psicose, and other products given with sweetness. The sugar alcohol is one or more sugar alcohols selected from the group consisting of sorbitol, mannitol, lactitol, maltitol, xylitol and erythritol, while the high intensity sweetener is one or more high intensity sweeteners as selected from aspartame, acesulfame K, sodium cyclamate, sodium saccharin, Sucralose (under trade name), stevia sweetener, dulcin, taumatin, neotame and monellin.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: May 23, 2023
    Assignees: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Hideki Fujihara, Kazuhiro Okuma, Tetsuo Iida, Ken Izumori, Masaaki Tokuda, Kazuhiro Fukada
  • Publication number: 20230141777
    Abstract: The present invention provides a composition for treating or preventing renal cell cancer, the composition comprising, as an active ingredient, D-allose and/or a derivative thereof and/or a mixture thereof, and being characterized by being administered through the intestinal tract (for example, oral administration). Moreover, the present invention provides a method for treating or preventing renal cell cancer in a subject, the method comprising administering a composition, which is for treating or preventing renal cell cancer and contains D-allose as an active ingredient, to a subject in need thereof through the intestinal tract (for example, oral administration).
    Type: Application
    Filed: March 23, 2021
    Publication date: May 11, 2023
    Inventors: Rikiya Taoka, Yoshiyuki Kakehi, Mikio Sugimoto, Xia Zhang, Yuki Matsuoka, Ken Izumori, Akihide Yoshihara
  • Publication number: 20220184105
    Abstract: Provided is a pharmaceutical composition that is for prevention or treatment of urinary tract organ cancer, causes no adverse side effects, can be continuously used for a long time, and is administered to the urinary tract organ by injection into the urinary tract organ cavity. A solution for injection into the urinary tract organ cavity contains D-allose. The inside of the urinary tract organ cavity is the inside of the upper urinary tract and the inside of the bladder. The solution is for injection therapy into the urinary tract organ cavity. The solution uses enhancement of sugar uptake into cancer cells of the urinary tract organ (for example, RT112, 253J, J82) by D-allose. The solution contains D-allose together with a pharmaceutically acceptable diluent or carrier. The solution is a pharmaceutical composition for prevention or treatment of urinary tract organ cancer.
    Type: Application
    Filed: January 16, 2020
    Publication date: June 16, 2022
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Rikiya Taoka, Yoshiyuki Kakehi, Mikio Sugimoto, Xia Zhang, Yuki Matsuoka, Ken Izumori, Akihide Yoshihara
  • Publication number: 20220175931
    Abstract: Provided is an improved glucose-containing peritoneal dialysate, an ophthalmic composition, or an infusion that can suppress a blood glucose level increase even when used in a long-term treatment and can also suppress an infectious disease, by only addition. A D-glucose-containing osmotic pressure regulator includes D-allose and/or D-allulose as an additive for suppressing a blood glucose level increase by continuous absorption of glucose into the body and for suppressing an infectious disease. The osmotic pressure regulator is used as a mixture with a peritoneal dialysate, an ophthalmic composition, or an infusion. A peritoneal dialysis method for suppressing a blood glucose level increase by continuous absorption of glucose into the body through peritoneal dialysis and for suppressing an infectious disease uses a dialysate containing D-allose and/or D-allulose in an effective amount.
    Type: Application
    Filed: March 10, 2020
    Publication date: June 9, 2022
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Tetsuo Minamino, Taro Ozaki, Akihide Yoshihara, Ken Izumori
  • Publication number: 20220152068
    Abstract: To provide a composition for the treatment of renal cell carcinoma and a composition or a method for enhancing the uptake of a drug into renal cell carcinoma cells. Provided are a D-allose-containing composition for the treatment of renal cell carcinoma, and a D-allose-containing composition or method for enhancing the uptake of a drug into renal cell carcinoma cells. The composition is a pharmaceutical composition to be administered in an effective amount to patients requiring the treatment of renal cell carcinoma in humans or animals other than humans.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 19, 2022
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Rikiya Taoka, Yoshiyuki Kakehi, Mikio Sugimoto, Xia Zhang, Yuki Matsuoka, Ken Izumori, Akihide Yoshihara
  • Publication number: 20210395718
    Abstract: To provide a ketose 3-epimerase that can be used in the food industry and is highly safe, highly active, and heat resistant, a microorganism that produces this enzyme, and a method of producing a ketose. The present invention provides a ketose 3-epimerase that can be obtained from a microorganism belonging to the genus Arthrobacter, has a molecular mass of about 36 kDa as measured by SDS-PAGE, and has the following substrate specificities (A) and (B): (A) having an activity of epimerizing position 3 of a D- or L-ketose and preparing a D- or L-ketose corresponding thereto, and (B) having the highest epimerization activity on position 3 of D-allulose, among D- or L-ketohexoses.
    Type: Application
    Filed: November 21, 2019
    Publication date: December 23, 2021
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Kazuya Akimitsu, Ken Izumori, Akihide Yoshihara, Shiro Kato, Susumu Mochizuki, Hiromi Yoshida, Shigehiro Kamitori
  • Publication number: 20210386767
    Abstract: To provide a brown and beige adipocyte activating agent and a brown and beige adipocyte activating food, each containing D-allulose as an active ingredient. Provided are a brown and beige adipocyte activating agent containing D-allulose as an active ingredient; a brown and beige adipocyte activating agent containing at least D-allulose and having a UCP-1 expression promoting action; a brown and beige adipocyte activating agent which enhances UCP-1 expression and thereby activates brown and beige adipocytes; an energy consumption promoting agent containing D-allulose as an active ingredient; an energy consumption promoting agent which activates brown and beige adipocytes and thereby promotes energy consumption; a UCP-1 expression enhancing agent containing D-allulose as an active ingredient; and a composition or food composition containing these agents.
    Type: Application
    Filed: November 7, 2019
    Publication date: December 16, 2021
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Koji Murao, Hitomi Imachi, Ken Izumori, Akihide Yoshihara
  • Publication number: 20210324434
    Abstract: An object of the present invention is to provide a rare sugar-containing composition having improved properties as a sweetener while maintaining the excellent functionality of D-psicose. The invention relates to a method of producing a rare-sugar containing composition with D-fructose as a raw material. An intended product having a novel composition of D-glucose, D-fructose, and D-psicose is obtained by preparing a mixture of D-fructose and D-psicose by using ketose 3-epimerase in the first stage and converting D-fructose into D-glucose by using D-xylose isomerase inert to D-psicose in the second stage. The first-stage product is a mixture of D-fructose and rare sugar D-psicose. The resulting mixture is a sweetener having a taste quality equal to that of sugar.
    Type: Application
    Filed: November 7, 2019
    Publication date: October 21, 2021
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Kazuya Akimitsu, Ken Izumori, Seizo Takaoka, Akihide Yoshihara, Shiro Kato, Susumu Mochizuki
  • Publication number: 20210030037
    Abstract: A D-psicose-containing sweetener with the modification of the taste of D-psicose includes D-psicose, a sugar alcohol and/or a high intensity sweetener, preferably containing D-psicose as the main component, particularly a low-calorie sweetener and/or a sweetener giving refreshing feel in the oral cavity, as well as foods and drinks obtained by using the D-psicose-containing sweetener with the modification of the taste of D-psicose, and other products given with sweetness. The sugar alcohol is one or more sugar alcohols selected from the group consisting of sorbitol, mannitol, lactitol, maltitol, xylitol and erythritol, while the high intensity sweetener is one or more high intensity sweeteners as selected from aspartame, acesulfame K, sodium cyclamate, sodium saccharin, Sucralose (under trade name), stevia sweetener, dulcin, taumatin, neotame and monellin.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 4, 2021
    Applicants: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Hideki Fujihara, Kazuhiro Okuma, Tetsuo Iida, Ken Izumori, Masaaki Tokuda, Kazuhiro Fukada
  • Patent number: 10869494
    Abstract: Providing a D-psicose-containing sweetener with the modification of the taste of D-psicose, comprising D-psicose, a sugar alcohol and/or a high intensity sweetener, preferably containing D-psicose as the main component, particularly a low-calorie sweetener and/or a sweetener giving refreshing feel in the oral cavity, as well as foods and drinks obtained by using the D-psicose-containing sweetener with the modification of the taste of D-psicose, and other products given with sweetness. The sugar alcohol is one or more sugar alcohols selected from the group consisting of sorbitol, mannitol, lactitol, maltitol, xylitol and erythritol, while the high intensity sweetener is one or more high intensity sweeteners as selected from aspartame, acesulfame K, sodium cyclamate, sodium saccharin, Sucralose (under trade name), stevia sweetener, dulcin, taumatin, neotame and monellin.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: December 22, 2020
    Assignee: MATSUTANI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Hideki Fujihara, Kazuhiro Okuma, Tetsuo Iida, Ken Izumori, Masaaki Tokuda, Kazuhiro Fukada
  • Patent number: 10638752
    Abstract: A composition comprising at least one monosaccharide selected from D-tagatose, D-allose, D-psicose, D-talose, D-sorbose, D-galactose, Lfructose, D-mannose and D-mannitol as an active ingredient and multiple surfactants selected from an anionic surfactant selected from aryl sulfonates, formalin condensates of aryl sulfonates, alpha-olefin sulfonates, alkyl sulfonates, alkyl diphenyl ether disulfonates, polyoxyethylene alkyl phenyl ether sulfonates, polyoxyethylene alkyl ether sulfosuccinic acid half esters, alkyl sulfates, sulfosuccinates, polyoxyalkylene aryl ether sulfates, polyoxyalkylene alkyl ether sulfates, polyoxyethylene-polyoxypropylene block polymer sulfates, polyoxyalkylene alkyl ether acetates, polyoxyalkylene aryl ether phosphates, polyoxyalkylene alkyl ether phosphates, polyoxyethylene-polyoxypropylene block polymer phosphates, alkyl phosphate esters, methyl taurates, polycarboxylates and fatty acid salts, wherein the anionic surfactants are at a blending ratio of 0.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 5, 2020
    Assignees: MITSUI CHEMICALS AGRO, INC., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Toshiaki Ohara, Kiyoko Tanaka, Shuji Ishizaki, Shigehiro Kato, Kazuya Akimitsu, Ken Izumori
  • Publication number: 20180116215
    Abstract: A composition comprising at least one monosaccharide selected from D-tagatose, D-allose, D-psicose, D-talose, D-sorbose, D-galactose, Lfructose, D-mannose and D-mannitol as an active ingredient and multiple surfactants selected from an anionic surfactant selected from aryl sulfonates, formalin condensates of aryl sulfonates, alpha-olefin sulfonates, alkyl sulfonates, alkyl diphenyl ether disulfonates, polyoxyethylene alkyl phenyl ether sulfonates, polyoxyethylene alkyl ether sulfosuccinic acid half esters, alkyl sulfates, sulfosuccinates, polyoxyalkylene aryl ether sulfates, polyoxyalkylene alkyl ether sulfates, polyoxyethylene-polyoxypropylene block polymer sulfates, polyoxyalkylene alkyl ether acetates, polyoxyalkylene aryl ether phosphates, polyoxyalkylene alkyl ether phosphates, polyoxyethylene-polyoxypropylene block polymer phosphates, alkyl phosphate esters, methyl taurates, polycarboxylates and fatty acid salts, wherein the anionic surfactants are at a blending ratio of 0.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Applicants: MITSUI CHEMICALS AGRO, INC., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Toshiaki OHARA, Kiyoko TANAKA, Shuji ISHIZAKI, Shigehiro KATO, Kazuya AKIMITSU, Ken IZUMORI
  • Patent number: 9932617
    Abstract: There are provided a highly safe epimerase usable in food industry, and a method for producing a ketose. The epimerase is a ketose 3-epimerase obtainable from a microorganism of the genus Arthrobacter, and having the amino acid sequence represented by SEQ ID NO: 1 of the Sequence Listing, and (1) substrate specificity whereby a D- or L-ketose is epimerized at position 3 to produce a corresponding D- or L-ketose, and (2) the highest substrate specificity for D-fructose and D-psicose among D- and L-ketoses. The ketose 3-epimerase is also represented by SEQ ID NO: 3 or SEQ ID NO: 4 of the Sequence Listing, and epimerizes a D- or L-ketose at position 3 to produce a corresponding D- or L-ketose.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 3, 2018
    Assignee: MATSUTANI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Ken Izumori, Pushpa Kiran Gullapalli, Tomoya Shintani, Ryo Kikkawa
  • Patent number: 9861099
    Abstract: Provided is a composition that enhances the effects of monosaccharides. The composition is a composition comprising a monosaccharide as an active ingredient thereof and comprising at least one or more assistants selected from a nonionic surfactant (excluding acetylene glycol-based surfactants, fluorine-based surfactants and silicone-based surfactants), an anionic surfactant (excluding lignin sulfonate), a cationic surfactant, an amphoteric surfactant, a water-soluble polymer, an amino acid, an amino sugar, a disaccharide alcohol and a salt, and is effective as an agricultural control composition against plant disease, particularly plant disease caused by fungi and plant disease caused by bacteria.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: January 9, 2018
    Assignees: MITSUI CHEMICALS AGRO, INC., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Toshiaki Ohara, Kiyoko Tanaka, Shuji Ishizaki, Shigehiro Kato, Kazuya Akimitsu, Ken Izumori
  • Patent number: 9668958
    Abstract: To provide a composition for preventing periodontal diseases (prophylactic agent of periodontal diseases), the composition having an excellent cariostatic property, being safe and stable for prolonged use and having less effects on flavor. A non-cariogenic material prepared by blending a rare sugar in the D form as selected from the group consisting of D-psicose, D-sorbose and D-tagatose, a rare sugar in the L form as selected from L-fructose, L-psicose and L-tagatose, or allitol as a rare sugar derivative, singly or in combination. A cariostatic agent comprising D-psicose, D-sorbose, D-tagatose, L-fructose, L-psicose and/or L-tagatose. A cariostatic agent in combination with catechins.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: June 6, 2017
    Assignees: MATSUTANI CHEMICAL INDUSTRY CO., LTD., NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Tetsuo Iida, Takashi Ichihara, Ken Izumori, Masaaki Tokuda, Takaaki Ogawa
  • Publication number: 20160120889
    Abstract: A lifespan extending agent that is safe for animals, and can easily be ingested in a form that resembles foods. A lifespan extending method is also disclosed. In the lifespan extending agent, a rare sugar usable as a sweetener is contained as an active ingredient.
    Type: Application
    Filed: January 13, 2016
    Publication date: May 5, 2016
    Applicants: NAT'L UNIVERSITY CORPORATION KAGAWA UNIVERSITY, MATSUTANI CHEMICAL INDUSTRY CO., LTD., IZUMORING CO., LTD.
    Inventors: Masashi Sato, Kazuhiro Okuma, Ken Izumori
  • Publication number: 20160037768
    Abstract: Provided is a composition that enhances the effects of monosaccharides. The composition is a composition comprising a monosaccharide as an active ingredient thereof and comprising at least one or more assistants selected from a nonionic surfactant (excluding acetylene glycol-based surfactants, fluorine-based surfactants and silicone-based surfactants), an anionic surfactant (excluding lignin sulfonate), a cationic surfactant, an amphoteric surfactant, a water-soluble polymer, an amino acid, an amino sugar, a disaccharide alcohol and a salt, and is effective as an agricultural control composition against plant disease, particularly plant disease caused by fungi and plant disease caused by bacteria.
    Type: Application
    Filed: March 10, 2014
    Publication date: February 11, 2016
    Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, MITSUI CHEMICALS AGRO, INC.
    Inventors: Toshiaki OHARA, Kiyoko TANAKA, Shuji ISHIZAKI, Shigehiro KATO, Kazuya AKIMITSU, Ken IZUMORI